K.C.
I have a 16 year old step daughter that I have been around for 14 years of her life. We had problems when she was 8 ish. She said she hated to visit because of me and I was too strict. The counselor said her frustractions was just the icing on the cake. There had to be underlying problems to cause such anger and frustration. When we asked how long it took to except me she said it takes 7 x's the years of their age you became a couple before they actuall respect you being a constant figure or authority it their lives. I am not too sure about all that because we still have hard visitations. I have always given her the idea no matter what she does it will not be the breaking point of our marriage. We have always felt it was the negativity they tell you not to have towards your ex that has been in her ear at home.
Good Luck!